Check the connection at the router by Ethernet before buying equipment: a slow connection in a distant room does not, by itself, identify a problem with the incoming broadband service. Consider a replacement router when one well-placed Wi-Fi point can reach the rooms you use; mesh addresses several coverage gaps, an extender targets one reachable weak spot, and powerline offers another route where walls or floors obstruct Wi-Fi. Before replacing an ISP-supplied hub, confirm the service’s connection requirements and keep the hub for fault diagnosis.
If the connection works near the router but fails in distant rooms or on another floor, compare ways of placing a network point nearer those rooms. Mesh and powerline-assisted connections address different building layouts; neither guarantees coverage in every property.
When streaming, gaming, video calls and downloads happen together, compare performance at the router during quiet and busy periods before blaming Wi-Fi alone. Ofcom distinguishes Wi-Fi problems from faults with the incoming broadband connection.
If most rooms work well, a focused extender or a wired or powerline connection may be more relevant than rebuilding the whole network. Which? distinguishes targeted extender use from a mesh system for broader coverage.
Consider it when: One well-positioned Wi-Fi point can reach the important rooms, but the current router struggles with connected devices.
Trade-off: A different router still broadcasts from one location, and replacing an ISP hub depends on the service’s connection requirements.
Consider it when: Several distant rooms or floors need Wi-Fi points nearer the devices.
Trade-off: Node placement and the connection between nodes affect the result; Ethernet between locations can provide a wired link where available.
Consider it when: One room needs better coverage and the extender can be placed where the router’s signal is still usable.
Trade-off: It is a targeted remedy, not a substitute for placing network points across several poorly covered rooms.
Consider them when: Walls or floors obstruct a Wi-Fi-only link to a remote room and suitable mains sockets are available.
Trade-off: The connection depends on the home’s electrical installation, so test it in the sockets you intend to use.
| Concern | What to check | Who this matters to |
|---|---|---|
| Finding the bottleneck | Compare an Ethernet test at the router, with heavy use paused, against Wi-Fi tests in affected rooms. Repeat at different times. | If I cannot tell whether the slowdown starts at the router or elsewhere in the home, I want to diagnose it before choosing equipment. Around 27% of consumers put that distinction first. |
| Coverage across rooms | Map the weak rooms and possible node locations; check whether Ethernet can connect mesh locations or suitable sockets are available for powerline. | When several rooms or floors lose signal, I need connections nearer the places we use. For roughly 33% of consumers, whole-home coverage is the primary concern. |
| Simultaneous use | Note which devices are active together and compare Ethernet results during quiet and busy periods. | If calls, streams and downloads compete at the same time, I need to know whether local Wi-Fi or the incoming service is limiting us. About 20% of consumers prioritise simultaneous use. |
| One remote room | Check for a usable signal at the proposed extender position, or test powerline in the intended wall sockets. | If the rest of my home connects reliably, I would rather focus on the one weak room. A further roughly 20% of consumers make that their main concern. |
A poor Wi-Fi result may reflect distance, walls, interference, the device or competing household use. Ofcom notes that it does not necessarily mean the broadband line is faulty.
As Which? advises for a clearer speed comparison, test a computer connected directly to the router by Ethernet, then test Wi-Fi in the affected rooms. Repeat when household use differs.
The required modem, WAN connection and settings depend on the broadband service. BT Business, for example, makes third-party-router use conditional on compatibility with its service.
Confirm your access type, physical connection and required settings with your ISP, and retain the supplied hub for fault testing.
Depending on the service, setup may require a compatible modem and time to configure it; check what support the provider offers for third-party equipment.
An extender needs a usable connection back to the main router. Installing it only in the dead zone can leave that link weak.
Test a position between the router and the target room, then check the connection in the room itself. For several weak rooms, compare mesh or a wired or powerline route.
Walls, floors, node positions and electrical wiring vary between homes, so a product rating cannot establish the result in your intended rooms or sockets.
Check the seller’s return terms and test the equipment promptly in the locations where you will use it. For mesh, consider a wired link between nodes if Ethernet is available.
Its Deco range is relevant to households considering multiple Wi-Fi points, including selected models with different connection approaches.
Its Orbi range is relevant when comparing mesh kits for coverage across several rooms.
Its Magic powerline range is relevant where a remote room is difficult to reach over Wi-Fi alone.
These choices cover three approaches to weak in-home coverage: multi-unit mesh kits for several rooms, an extender for one reachable weak spot, and a powerline Wi-Fi kit for a remote room. Choose the route after checking where the connection becomes weak; the products do not change the speed of the incoming broadband service.
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Consider this multi-unit kit when several rooms need Wi-Fi points rather than relying on one router location.
The product name specifies dual-band BE3600 and 2.5Gbps Ethernet. Confirm that the connection to your broadband equipment and the intended node positions suit your home.
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This three-unit mesh kit is a route to consider when weak Wi-Fi affects several rooms.
Check the power adaptor and service suitability of this EU V1 set before buying, as well as your ISP connection requirements. A wired link between locations requires available Ethernet.
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Consider this three-unit kit where coverage is weak beyond a single router location.
Confirm how it will connect to your modem or ISP equipment and place the units with the affected rooms in mind. Wi-Fi 7 in the product name does not establish the speed you will achieve at home.
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This extender suits consideration for one weak area if its intended position still receives a usable signal from the router.
Test both that position and the target room. If roaming with an existing mesh setup matters to you, confirm compatibility with your router before buying.
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Consider a powerline route when a remote room is difficult to reach over Wi-Fi alone.
Test this kit in the wall sockets you intend to use: results depend on the home’s electrical installation. Confirm compatibility with your router if coordinated roaming is important.
Compare an Ethernet test at the router, with other heavy use paused, against Wi-Fi tests in the affected rooms. Ofcom notes that a slow Wi-Fi result does not necessarily mean the broadband line is faulty; if the wired result is also poor, investigate the incoming connection rather than assuming a mesh kit or extender will fix it.
Confirm your broadband access type, physical connection, required modem or WAN capability and ISP settings before choosing a router. BT Business makes use of third-party equipment conditional on service compatibility; ask your own provider what applies to your connection and keep its supplied hub for fault testing.
No: these routes address how the connection reaches devices within your home, not the speed delivered by the broadband service. Compare a wired test at the router with room-by-room Wi-Fi results to decide whether in-home coverage is the problem.
Check that the manufacturer still provides firmware updates and plan to install them during use. The National Cyber Security Centre identifies firmware as important to device security; during setup, change default administrator credentials and check the available security settings.